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What is a Sink Macerator?

Food macerators in commercial kitchens will be banned in England and Wales from 2018. They are already outlawed in Scotland (2016) and Northern Ireland (2017). Food waste disposal units were originally seen as a quick way to dispose of food which would otherwise go to landfill, but today food recycling is increasingly the norm in […]

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Lead Water Pipes

The use of lead water pipes was banned in the 1970s because of health risks, however properties built before then may still contain lead pipework. Health risks of lead in drinking water Lead builds up in the body over time. Children are particularly at risk as lead has been shown to have an adverse impact […]

What is a Catch Pit?

A catch pit is an empty chamber built into a drainage system to ‘catch’ silt and other debris carried along the drainage pipe by water. Catch pits (sometimes spelt catchpits), silt traps or interceptor traps as they are also known – play a crucial role in preventing the build-up of material that can cause pipe […]

What is an Interceptor?

What is a drainage interceptor? A drain interceptor is a tank installed within pipework to collect and hold contaminants, allowing the remaining wastewater to be discharged safely into the main sewerage system. Drainage interceptors are referred to by other names, including interceptor traps, interceptor tanks, and filter tanks. They can also be called separators – […]

The Dirty Dozen

At UKDN Waterflow, we’ve put together our Drainage Dirty Dozen so that you know how to keep your drainage systems — at work and at home — happy and healthy. We’ve even created a downloadable poster which you can print and display to help spread awareness about good drainage practices. Click here to download your Dirty […]

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What is a P Trap Gully?

A gully trap allows surface water to enter an underground drainage system without smells and gases from foul drains escaping into the air around a building. In fact, its name describes its purpose. A gully is a drainage system designed to control surface water, usually from rain, and a gully trap is designed to ‘trap’ […]

What is a Manhole/Inspection Chamber?

A manhole, or inspection chamber, is an access point to an underground utility network, such as a drainage system. The presence of a drain or sewer manhole allows the underground pipes to be inspected, surveyed, unblocked, cleaned, or repaired. Guidance on the design, location, and structure of manhole and inspection chambers is governed in the […]

What is a Soil Vent Pipe?

What is a Soil Vent Pipe? A soil vent pipe commonly runs vertically from the underground drainage system to the top of a property, just above roof gutter level. It is also known as a soil stack pipe, a drain waste vent or a ventilated discharge pipe. Soil vent pipes can be installed inside structures. […]

What is a Septic Tank?

A septic tank collects and treats wastewater at a property that is not connected to the mains sewer system. Installed underground, a septic tank makes use of natural processes to treat the sewage it stores. Usually made up of two chambers or compartments, the tank receives wastewater from an inlet pipe. How does a septic […]

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